42 Taltal No. 61 Engine Spec

42 Taltal No. 61 Engine Spec

This engine spec is based on a maximum tractive effort of 27615 lbs and a max hp of 650@ 28 mph at rail head. Max speed is set at 20 mph for DCC operation - with CAB mode speeds above 40 mph are possible. The power curve used as a basis for setting this spec was developed with the tzSTEC program and should represent a realistic approximation of the locomotive's performance. The parameters used above are in some cases changed from actual values for use in Trainz to give a more prototypical performance within the limitations of the Trainz steam physics system. In particular piston area has been reduce based on piston-max-vol (cylinder vol) and boiler-to-piston-flow to obain a starting TE consistent with the prototype. Piston-min/max-volumes have been increased to obtain prototypical water consumption rates.

For use in TRS2004 the TE at starting is set to 120% of the prototype's rated performance - to compensate for the TRS2004's incorrect effect of gravity on grades - and reduces to 100% at 28+ mph. In TRS2006 the included steam-power curve will give 100% at starting.

No of axles has been increased form 6 to 53 to account for increased resistance of steam locomotives - approx 20lbs resistence/ton of weight on drivers.

Author: P.Pardoe-Matthews <narrowgauge>

42 Taltal No. 61 Engine Spec
• config.txt 7.27KB
• taltal.jpg 13.70KB

VE48: This asset uses an obsolete trainz-build number. Trainz-build numbers below 3.5 are no longer supported.
VE61: Required tag 'blower-effect' was missing and has been set to default.
VE61: Required tag 'blower-max-flow' was missing and has been set to default.
VE61: Required tag 'boiler-efficency' was missing and has been set to default.
VE61: Required tag 'boiler-efficency-idle' was missing and has been set to default.
VE61: Required tag 'boiler-efficency-min' was missing and has been set to default.
VE61: Required tag 'cutoff' was missing and has been set to default.
VE61: Required tag 'firebox-heating-surface-area' was missing and has been set to default.
VE61: Required tag 'hand-brake-max-force' was missing and has been set to default.
VE61: Required tag 'ideal-coal-mass' was missing and has been set to default.
VE61: Required tag 'max-coal-mass' was missing and has been set to default.
VE61: Required tag 'number-cylinders' was missing and has been set to default.
VE61: Required tag 'number-power-strokes' was missing and has been set to default.
VE61: Required tag 'speed' was missing and has been set to default.
VE61: Required tag 'steam-chest-max-flow' was missing and has been set to default.
VE61: Required tag 'steam-chest-volume' was missing and has been set to default.
VE61: Required tag 'super-heating-constant' was missing and has been set to default.
VE61: Required tag 'valve-lap-percent' was missing and has been set to default.